Siemens 6AV6646-1BD22-1AA0 SIMATIC KTP400 Basic

Name: Siemens 6AV6646-1BD22-1AA0 SIMATIC KTP400 Basic
Brand: Siemens
SKU: 6AV6646-1BD22-1AA0
Price: 1049.00 EUR
Availability: InStock

€ 1.049,00

Condition

Clear

SKU: 6AV6646-1BD22-1AA0 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6646-1BD22-1AA0 is a SIMATIC KTP400 Basic panel, part of the SIMATIC Basic Panel series from Siemens. It is a compact key and touch-operated HMI panel featuring a 4-inch widescreen TFT display, designed for straightforward machine-level visualization and operator control tasks. This panel is intended for use with Siemens SIMATIC S7-1200 and S7-300/400 PLCs and is configured using the SIMATIC WinCC Basic engineering software included with TIA Portal.

The KTP400 Basic features a 4-inch TFT display with a resolution of 480 x 272 pixels and 64,000 colors, combined with a resistive touch screen and 4 configurable function keys for flexible operator interaction. It communicates via a single PROFINET interface (RJ45), enabling direct integration into standard Ethernet-based automation networks. The panel operates on 24 V DC supply voltage and offers 10 MB of user memory for project data, screens, and recipes. It supports recipe management, alarm logging, and trend display functions within the constraints of the Basic Panel feature set.

The KTP400 Basic is widely used in small to medium-sized machinery across manufacturing, packaging, food and beverage, and material handling industries. Its compact 4-inch form factor makes it suitable for installation in confined control cabinet doors or machine panels where space is limited. The combination of touch and key operation provides reliable usability in environments where operators may be wearing gloves or working in demanding conditions.

Technical Specifications

Display Size	4 inch
Display Resolution	480 x 272 pixels
Display Colors	64,000 (16-bit)
Display Type	TFT widescreen
Touch Technology	Resistive touch screen
Function Keys	4 configurable function keys
Input/Operating Voltage	24 V DC
Power Consumption	4.5 W (typical)
Communication Interface	1 x PROFINET (RJ45)
User Memory	10 MB
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
Relative Humidity	10% to 90% (non-condensing)
IP Rating (Front)	IP65
IP Rating (Rear)	IP20
Dimensions (W x H x D)	138 x 108 x 38 mm
Panel Cutout	122 x 92 mm
Certifications	CE, UL, cULus
Engineering Software	SIMATIC WinCC Basic (TIA Portal)

Common Error Codes and System Events

Event ID: 10000: Configuration error detected on the HMI panel. The project loaded on the device contains configuration inconsistencies or is incompatible with the firmware version.
Recompile and re-download the project from TIA Portal ensuring the firmware version matches the target panel version. Update panel firmware if necessary.
Event ID: 20000: Communication connection to the PLC has been lost or cannot be established. The PROFINET connection between the KTP400 and the configured PLC is interrupted.
Check the PROFINET cable and RJ45 connector integrity. Verify IP address configuration on both the panel and PLC. Confirm the PLC is in RUN mode and the network switch is operational.
Event ID: 40000: Tag read/write error. The HMI is unable to read from or write to one or more configured PLC tags.
Verify that the PLC tag addresses configured in WinCC Basic match the actual PLC data block or memory addresses. Check that the PLC program is running and the data areas are accessible.
Event ID: 50000: Recipe data error. An error occurred during reading or writing of recipe data, possibly due to a mismatch between recipe structure and PLC data.
Check recipe configuration in TIA Portal for structural consistency. Ensure the recipe data records on the panel are not corrupted. Re-download the project if necessary.
Event ID: 70000: System memory low warning. The available user memory on the panel is approaching its limit, which may affect project performance.
Review the project in TIA Portal and reduce the number of screens, images, or archived data. Delete unnecessary data records from the panel memory.
Event ID: 110000: Firmware update error. A firmware update process was interrupted or failed to complete successfully.
Restart the panel and attempt the firmware update again using the correct firmware package for the KTP400 Basic from the Siemens support portal. Ensure stable power supply during the update process.
Event ID: 140000: Backup or restore operation failed. An error occurred during a project backup or restore procedure via the panel's maintenance functions.
Ensure the USB memory device used is formatted correctly and has sufficient free space. Retry the backup or restore operation. If the issue persists, perform the operation via TIA Portal instead.

Frequently Asked Questions

Which PLCs are compatible with the KTP400 Basic (6AV6646-1BD22-1AA0)?

The KTP400 Basic is primarily designed for use with Siemens SIMATIC S7-1200 PLCs and is also compatible with S7-300 and S7-400 PLCs via PROFINET. Communication is configured through TIA Portal using WinCC Basic.

What communication interface does the KTP400 Basic support?

The 6AV6646-1BD22-1AA0 features a single PROFINET interface via an RJ45 connector. It does not have a PROFIBUS or MPI interface, so PLC connectivity is limited to PROFINET/Ethernet.

What engineering software is required to configure this panel?

The KTP400 Basic is configured using SIMATIC WinCC Basic, which is included with the TIA Portal engineering framework. A compatible version of TIA Portal must be used that matches the panel's firmware version.

What is the supply voltage for the KTP400 Basic?

The panel requires a 24 V DC supply voltage. Ensure the power supply is within the permissible tolerance range as specified in the device manual, typically 19.2 V DC to 28.8 V DC.

Can the KTP400 Basic be used for outdoor applications?

The front face of the KTP400 Basic is rated IP65, providing protection against dust and water jets, but the panel is not rated for direct outdoor exposure to sunlight or extreme temperatures. It should be installed in an enclosure suitable for the ambient environment.

Troubleshooting

Display remains blank after power on

Check the 24 V DC supply voltage at the panel's power connector using a multimeter. Verify polarity is correct and voltage is within the 19.2 V to 28.8 V DC range.

Correct any wiring errors or replace the power supply if voltage is out of range. If voltage is correct and display remains blank, the internal backlight or power board may be faulty and the panel should be sent for repair or replacement.

HMI cannot establish PROFINET connection to PLC

Verify the IP address, subnet mask, and device name configured on the KTP400 match the settings in the TIA Portal project. Use a network scanner or TIA Portal's accessible devices function to detect the panel on the network.

Correct any IP address or device name mismatches in TIA Portal and re-download the project. Replace the Ethernet cable or check the network switch port if physical connectivity is suspected. Ensure the PLC is powered and in RUN mode.

Touch screen does not respond or responds inaccurately

Inspect the touch screen surface for damage, contamination, or excessive pressure points. Check whether the issue is consistent across the entire screen or limited to specific areas.

Clean the touch screen surface with a soft, dry cloth. If inaccurate response persists, perform a touch screen calibration via the panel's Start Center menu. If the touch screen is physically damaged, the panel requires hardware repair.

Project download from TIA Portal fails or times out

Check the PROFINET connection between the engineering PC and the panel. Verify that the panel is in transfer mode (accessible via the Start Center) and that no firewall or antivirus software is blocking TIA Portal communication.

Place the panel in transfer mode manually via the Start Center. Disable any PC firewall temporarily during download. Ensure the TIA Portal version and panel firmware version are compatible, and update firmware if a mismatch is detected.

Alarm messages are not displayed on the panel

Check the alarm configuration in the TIA Portal project to confirm alarm tags are correctly linked to PLC addresses. Verify that the PLC bit or word triggering the alarm is actually changing state as expected.

Correct any misconfigured alarm tag addresses in WinCC Basic and re-download the project. Use the PLC's online monitoring function in TIA Portal to confirm the alarm trigger bits are being set. Ensure the alarm view or alarm window is included on the relevant HMI screen.

Condition	Repair, Used, Refurbished, New in box (sealed)